Eddie Preedy, 25, was last seen around 10.30 p.m. on Sunday, July 3, and officers are worried about his well-being.
He stands about five feet seven inches tall, has short brown hair, and a ginger beard.
He is thought to be wearing black shorts, a black t-shirt and black trainers.
He was wearing a black cap and carrying a bum bag with a lock.
Anyone with information is asked to call Kent Police at 101 and reference case number 04-0306.